First, in the USA it is common that female's family pays for
the wedding, NOT the groom's. Had this been from personal savings
she would have every right to be pissed. That it was not, and her
inheritance has disappeared she should consider it to be a lesson
learned. Perhaps that lesson: her parents think more of their
sons than they do their daughters.
Dear FRiend, I beg to differ. Knowing that the aunt had left her the funds apparently some time ago, she may have planned her life and school preparation around the expectation that she could try for a career instead of her culture's apparent male-domineered housewifery, or retail hell.
The parents were born elsewhere, but she appears to have been born (or grew up as) an American, and has indeed learned an important lesson: if someone steals from you, you can sue them. Even if you are a woman.
I hope she wins. Her parents openly debased her worth in favor of her brother, and for a frivolous, self-serving reason—probably to look good entertaining their friends at their son's wedding. That is not something most people could just brush off, assuming their goal to pursue an education is deep and sincere.